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typhoon: Use request_firmware()

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Based on a patch by Jaswinder Singh <jaswinder@infradead.org>.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2009-02-26 23:21:23 -08:00
committed by David S. Miller
parent 06e1f9ffa0
commit b775a750c3
5 changed files with 2937 additions and 3836 deletions
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133
drivers/net/typhoon.c
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@@ -129,16 +129,18 @@ static const int multicast_filter_limit = 32;
#include <asm/uaccess.h>
#include <linux/in6.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include "typhoon.h"
#include "typhoon-firmware.h"
static char version[] __devinitdata =
"typhoon.c: version " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
#define FIRMWARE_NAME "3com/typhoon.bin"
MODULE_AUTHOR("David Dillow <dave@thedillows.org>");
MODULE_VERSION(DRV_MODULE_VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_NAME);
MODULE_DESCRIPTION("3Com Typhoon Family (3C990, 3CR990, and variants)");
MODULE_PARM_DESC(rx_copybreak, "Packets smaller than this are copied and "
"the buffer given back to the NIC. Default "
@@ -1344,45 +1346,61 @@ typhoon_init_rings(struct typhoon *tp)
tp->txHiRing.lastRead = 0;
}
static const struct firmware *typhoon_fw;
static int
typhoon_request_firmware(struct typhoon *tp)
{
int err;
if (typhoon_fw)
return 0;
err = request_firmware(&typhoon_fw, FIRMWARE_NAME, &tp->pdev->dev);
if (err) {
printk(KERN_ERR "%s: Failed to load firmware \"%s\"\n",
tp->name, FIRMWARE_NAME);
return err;
}
if (typhoon_fw->size < sizeof(struct typhoon_file_header) ||
memcmp(typhoon_fw->data, "TYPHOON", 8)) {
printk(KERN_ERR "%s: Invalid firmware image\n",
tp->name);
release_firmware(typhoon_fw);
typhoon_fw = NULL;
return -EINVAL;
}
return 0;
}
static int
typhoon_download_firmware(struct typhoon *tp)
{
void __iomem *ioaddr = tp->ioaddr;
struct pci_dev *pdev = tp->pdev;
struct typhoon_file_header *fHdr;
struct typhoon_section_header *sHdr;
u8 *image_data;
void *dpage;
dma_addr_t dpage_dma;
const struct typhoon_file_header *fHdr;
const struct typhoon_section_header *sHdr;
const u8 *image_data;
dma_addr_t image_dma;
__sum16 csum;
u32 irqEnabled;
u32 irqMasked;
u32 numSections;
u32 section_len;
u32 len;
u32 load_addr;
u32 hmac;
int i;
int err;
err = -EINVAL;
fHdr = (struct typhoon_file_header *) typhoon_firmware_image;
image_data = (u8 *) fHdr;
image_data = typhoon_fw->data;
fHdr = (struct typhoon_file_header *) image_data;
if(memcmp(fHdr->tag, "TYPHOON", 8)) {
printk(KERN_ERR "%s: Invalid firmware image!\n", tp->name);
goto err_out;
}
/* Cannot just map the firmware image using pci_map_single() as
* the firmware is part of the kernel/module image, so we allocate
* some consistent memory to copy the sections into, as it is simpler,
* and short-lived. If we ever split out and require a userland
* firmware loader, then we can revisit this.
*/
err = -ENOMEM;
dpage = pci_alloc_consistent(pdev, PAGE_SIZE, &dpage_dma);
if(!dpage) {
image_dma = pci_map_single(pdev, (u8 *) typhoon_fw->data,
typhoon_fw->size, PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(pdev, image_dma)) {
printk(KERN_ERR "%s: no DMA mem for firmware\n", tp->name);
goto err_out;
}
@@ -1430,41 +1448,34 @@ typhoon_download_firmware(struct typhoon *tp)
load_addr = le32_to_cpu(sHdr->startAddr);
section_len = le32_to_cpu(sHdr->len);
while(section_len) {
len = min_t(u32, section_len, PAGE_SIZE);
if(typhoon_wait_interrupt(ioaddr) < 0 ||
ioread32(ioaddr + TYPHOON_REG_STATUS) !=
TYPHOON_STATUS_WAITING_FOR_SEGMENT) {
printk(KERN_ERR "%s: segment ready timeout\n",
tp->name);
goto err_out_irq;
}
/* Do an pseudo IPv4 checksum on the data -- first
* need to convert each u16 to cpu order before
* summing. Fortunately, due to the properties of
* the checksum, we can do this once, at the end.
*/
csum = csum_fold(csum_partial_copy_nocheck(image_data,
dpage, len,
0));
iowrite32(len, ioaddr + TYPHOON_REG_BOOT_LENGTH);
iowrite32(le16_to_cpu((__force __le16)csum),
ioaddr + TYPHOON_REG_BOOT_CHECKSUM);
iowrite32(load_addr,
ioaddr + TYPHOON_REG_BOOT_DEST_ADDR);
iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI);
iowrite32(dpage_dma, ioaddr + TYPHOON_REG_BOOT_DATA_LO);
typhoon_post_pci_writes(ioaddr);
iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE,
ioaddr + TYPHOON_REG_COMMAND);
image_data += len;
load_addr += len;
section_len -= len;
if (typhoon_wait_interrupt(ioaddr) < 0 ||
ioread32(ioaddr + TYPHOON_REG_STATUS) !=
TYPHOON_STATUS_WAITING_FOR_SEGMENT) {
printk(KERN_ERR "%s: segment ready timeout\n",
tp->name);
goto err_out_irq;
}
/* Do an pseudo IPv4 checksum on the data -- first
* need to convert each u16 to cpu order before
* summing. Fortunately, due to the properties of
* the checksum, we can do this once, at the end.
*/
csum = csum_fold(csum_partial(image_data, section_len, 0));
iowrite32(section_len, ioaddr + TYPHOON_REG_BOOT_LENGTH);
iowrite32(le16_to_cpu((__force __le16)csum),
ioaddr + TYPHOON_REG_BOOT_CHECKSUM);
iowrite32(load_addr,
ioaddr + TYPHOON_REG_BOOT_DEST_ADDR);
iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI);
iowrite32(image_dma + (image_data - typhoon_fw->data),
ioaddr + TYPHOON_REG_BOOT_DATA_LO);
typhoon_post_pci_writes(ioaddr);
iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE,
ioaddr + TYPHOON_REG_COMMAND);
image_data += section_len;
}
if(typhoon_wait_interrupt(ioaddr) < 0 ||
@@ -1488,7 +1499,7 @@ err_out_irq:
iowrite32(irqMasked, ioaddr + TYPHOON_REG_INTR_MASK);
iowrite32(irqEnabled, ioaddr + TYPHOON_REG_INTR_ENABLE);
pci_free_consistent(pdev, PAGE_SIZE, dpage, dpage_dma);
pci_unmap_single(pdev, image_dma, typhoon_fw->size, PCI_DMA_TODEVICE);
err_out:
return err;
@@ -2086,6 +2097,10 @@ typhoon_open(struct net_device *dev)
struct typhoon *tp = netdev_priv(dev);
int err;
err = typhoon_request_firmware(tp);
if (err)
goto out;
err = typhoon_wakeup(tp, WaitSleep);
if(err < 0) {
printk(KERN_ERR "%s: unable to wakeup device\n", dev->name);
@@ -2624,6 +2639,8 @@ typhoon_init(void)
static void __exit
typhoon_cleanup(void)
{
if (typhoon_fw)
release_firmware(typhoon_fw);
pci_unregister_driver(&typhoon_driver);
}